156 Print Media Guidelinesunwrapped, even in the paper feeder, can contribute to paper curling prior toprinting and cause feeding problems regardless of humidity. When printingon curled paper, straighten the paper and then insert it into the MPF or PSI.SmoothnessThe degree of paper smoothness directly affects print quality. If the paper istoo rough, the toner does not fuse to the paper properly, resulting in poorprint quality. If the paper is too smooth, it can cause paper feeding problems.Smoothness between 150 and 250 Sheffield points produces the best printquality.Moisture ContentThe amount of moisture in the paper affects both print quality and the abilityof the printer to feed the paper properly. Leave the paper in its originalpackaging until you are ready to use it. This limits the exposure of the paperto moisture changes that can degrade its performance.Grain DirectionGrain refers to the alignment of the paper fibers in a sheet of paper. Grain iseither grain long, running the length of the paper, or grain short, running thewidth of the paper. For 60 to 135 g/m 2 (16 to 36 lb bond) paper, grain longfibers are recommended. For paper heavier than 135 g/m 2 (36 lb bond), grainshort is preferred.Fiber ContentMost high-quality xerographic paper is made from 100% chemically pulpedwood. Paper containing fibers such as cotton possess characteristics that canresult in degraded paper handling.Recommended PaperTo ensure the best print quality and feed reliability, use dry 75 g/m 2 (20 lb)xerographic paper. Business paper designed for general business use alsoprovide acceptable print quality. Only use paper able to withstand hightemperatures without discoloring, bleeding, or releasing hazardous emissions.The laser printing process heats paper to high temperatures. Check with themanufacturer or vendor to determine whether the paper you have chosen isacceptable for laser printers.Downloaded from ManualsPrinter.com Manuals